RANKABLE EPA COUNTY AQI
Air Quality in ZIP 57501 - Pierre, South Dakota
County-derived EPA air-quality evidence connected locally through National Data System.
Median AQI
14.0
Maximum AQI
88.0
Good-air-quality days
94.41%
Average PM2.5
3.228 ug/m3
NDS Air Quality Score
84.36
U.S. County Rank
85 of 1,049
Percentile
91.98
Grade
A
What the data means
ZIP 57501 is connected to governed EPA county-level air-quality evidence for Hughes.
ZIP ranking note: ZIPs are not separately ranked. The rank shown on this page is the associated county rank because the EPA AQI evidence used here is county-derived.
County context
Methodology
EPA AQI evidence is county-derived. NDS connects that evidence to ZIP geography where a governed county relationship exists. NDS does not claim that EPA directly ranks ZIP codes.